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Chiang A, Swaminathan G, Hua V, Chan W, Do H, Bailey I, Rieger K, Curtis C, Oro A, Tang J, Sarin K. 116 Identification of germline pathogenic mutations in patients with high-frequency basal cell carcinomas. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Jacob GA, Prabhakaran SPS, Swaminathan G, Joseyphus RJ. Thermal kinetic analysis of mustard biomass with equiatomic iron-nickel catalyst and its predictive modeling. Chemosphere 2022; 286:131901. [PMID: 34449323 DOI: 10.1016/j.chemosphere.2021.131901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 08/05/2021] [Accepted: 08/12/2021] [Indexed: 06/13/2023]
Abstract
Mustard waste briquettes are commercially used as a fuel for power production in boilers, whereas the thermal kinetics of the biomass plays a vital role in deciding the process parameters. The pyrolysis process converts biomass to value-added products such as biochar, bio-oil, and hydrocarbon gases based on the heating rates and temperature. To enhance the pyrolytic activity of mustard biomass, magnetically separable and reusable FeNi alloy catalyst is investigated. The thermo-conversion properties are studied under variable heating rates with 2 and 10% FeNi particles prepared through a facile chemical reduction technique. Thermal kinetics is computed using Flynn-Wall-Ozawa (FOW) and Kissinger-Akahira-Sunose (KAS) methods. The activation energies calculated using FOW and KAS methods increase with FeNi addition in mustard while the calorific value decreases. The FeNi alloy particles with the spike-like morphology provide better metal-biomass binding resulting in higher activation energy and facilitates the easy decomposition of lignin. The 10% FeNi -mustard shows uniform conversion independent of heating rates, suitable for magnetically recoverable catalytic pyrolysis. Response surface methodology analysis predicts optimum conversion for 10% FeNi added mustard and less significance for the heating rates in concurrence with the experiments. Artificial neural network utilized to predict and validate mass loss for mustard biomass exhibits best fit for the three neural hidden layer and one output layered topology.
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Affiliation(s)
- G Antilen Jacob
- Magnetic Materials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli 620 015, India
| | - S P Sathiya Prabhakaran
- Department of Energy and Environment, National Institute of Technology, Tiruchirappalli, 620015, India
| | - G Swaminathan
- Department of Civil Engineering, National Institute of Technology, Tiruchirappalli, 620015, India
| | - R Justin Joseyphus
- Magnetic Materials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli 620 015, India.
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Sankaranarayanan S, Sivakumaran N, Radhakrishnan T, Swaminathan G. Metaheuristic-based approach for state and process parameter prediction using hybrid grey wolf optimization. ASIA-PAC J CHEM ENG 2018. [DOI: 10.1002/apj.2215] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- S. Sankaranarayanan
- Department of Instrumentation and Control Engineering; National Institute of Technology; Tiruchirappalli Tamil Nadu India
| | - N. Sivakumaran
- Department of Instrumentation and Control Engineering; National Institute of Technology; Tiruchirappalli Tamil Nadu India
| | - T.K. Radhakrishnan
- Department of Chemical Engineering; National Institute of Technology; Tiruchirappalli Tamil Nadu India
| | - G. Swaminathan
- Department of Civil Engineering; National Institute of Technology; Tiruchirappalli Tamil Nadu India
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Venkatesan G, Swaminathan G, Nagarajan R. Study on groundwater quality in and around solid waste landfill site at Tiruchirappalli, Tamil Nadu, India. ACTA ACUST UNITED AC 2013. [DOI: 10.1504/ijee.2013.052906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abstract
E-cadherin and its cytoplasmic partners, catenins, mediate epithelial cell-cell adhesion. Disruption of this adhesion allows cancer cells to invade and metastasize. Aberrant activation of the Src tyrosine kinase disrupts cell-cell contacts through an E-cadherin/catenin-dependent mechanism. Previously we showed that Rack1 regulates the growth of colon cells by suppressing Src activity at G(1) and mitotic checkpoints, and in the intrinsic apoptotic and Akt cell survival pathways. Here we show that Rack1, partly by inhibiting Src, promotes cell-cell adhesion and reduces the invasive potential of colon cancer cells. Rack1 stabilizes E-cadherin and catenins at cell-cell contacts by inhibiting the Src phosphorylation of E-cadherin, the ubiquitination of E-cadherin by the E3 ligase Hakai and the endocytosis of E-cadherin. Upon depletion and restoration of extracellular calcium, Rack1 facilitates the re-assembly of E-cadherin-containing cell-cell contacts. Rack1 also blocks HGF-induced endocytosis of E-cadherin, disruption of cell-cell contacts and cell scatter. Our results uncover a novel function of Rack1 in maintaining the junctional homeostasis of intestinal epithelial cells by regulation of the Src- and growth factor-induced endocytosis of E-cadherin.
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Affiliation(s)
- G Swaminathan
- Department of Medicine, Stanford University, Stanford, CA 94305-5187, USA
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Swaminathan G, Grossberg S. Laminar cortical mechanisms for the perception of slanted and curved 3-D surfaces and their 2-D pictorical projections. J Vis 2010. [DOI: 10.1167/2.7.79] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Sowmeyan R, Swaminathan G. Retraction notice to "Effluent treatment process in molasses-based distillery industries: a review". [J. Hazard. Mater. 152(2) (2008) 453-462]. J Hazard Mater 2009; 170:507. [PMID: 19642235 DOI: 10.1016/j.jhazmat.2009.04.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Sukumar M, Sivasamy A, Swaminathan G. In situ biodecolorization kinetics of Acid Red 66 in aqueous solutions by Trametes versicolor. J Hazard Mater 2009; 167:660-663. [PMID: 19201090 DOI: 10.1016/j.jhazmat.2009.01.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2008] [Revised: 01/07/2009] [Accepted: 01/07/2009] [Indexed: 05/27/2023]
Abstract
The biological decolorization methodology and the mechanism involved in the degradation of Acid Red 66 was chosen as a model of azo dye using the white rot fungi Trametes versicolor was studied. Biodecolorization of Acid Red 66 using white rot fungi T. versicolor was demonstrated by the decolorization of the culture medium, the extent of which was determined by monitoring the decrease in absorbance at 506 nm. The biodecolorization kinetics of Acid Red 66 (100 ppm) was found to be first order and the degradation rate coefficient is 1.312 x 10(-2)min(-1) (R=0.96683, n=8) at 30 degrees C. The effects of independent variables such as carbon sources, nitrogen sources pH, and temperature on the biodecolorization of Acid Red 66 was also investigated.
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Affiliation(s)
- M Sukumar
- Biotechnology Department, MVJ College of Engineering, Bangalore-67, India
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Sivakumar V, Anna JL, Vijayeeswarri J, Swaminathan G. Ultrasound assisted enhancement in natural dye extraction from beetroot for industrial applications and natural dyeing of leather. Ultrason Sonochem 2009; 16:782-9. [PMID: 19410496 DOI: 10.1016/j.ultsonch.2009.03.009] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2008] [Revised: 03/17/2009] [Accepted: 03/18/2009] [Indexed: 05/03/2023]
Abstract
There is a growing demand for eco-friendly/non-toxic colorants, specifically for health sensitive applications such as coloration of food and dyeing of child textile/leather garments. Recently, dyes derived from natural sources for these applications have emerged as an important alternative to potentially harmful synthetic dyes and pose need for suitable effective extraction methodologies. The present paper focus on the influence of process parameters for ultrasound assisted leaching of coloring matter from plant materials. In the present work, extraction of natural dye from beetroot using ultrasound has been studied and compared with static/magnetic stirring as a control process at 45 degrees C. The influence of process parameters on the extraction efficiency such as ultrasonic output power, time, pulse mode, effect of solvent system and amount of beetroot has been studied. The use of ultrasound is found to have significant improvement in the extraction efficiency of colorant obtained from beetroot. Based on the experiments it has been found that a mixture of 1:1 ethanol-water with 80W ultrasonic power for 3h contact time provided better yield and extraction efficiency. Pulse mode operation may be useful in reducing electrical energy consumption in the extraction process. The effect of the amount of beetroot used in relation to extraction efficiency has also been studied. Two-stage extraction has been studied and found to be beneficial for improving the yield for higher amounts of beetroot. Significant 8% enhancement in % yield of colorant has been achieved with ultrasound, 80W as compared to MS process both using 1:1 ethanol-water. The coloring ability of extracted beet dye has been tested on substrates such as leather and paper and found to be suitable for dyeing. Ultrasound is also found to be beneficial in natural dyeing of leather with improved rate of exhaustion. Both the dyed substrates have better color values for ultrasonic beet extract as inferred from reflectance measurement. Therefore, the present study clearly offers efficient extraction methodology from natural dye resources such as beetroot with ultrasound even dispensing with external heating. Thereby, also making eco-friendly non-toxic dyeing of fibrous substances a potential viable option.
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Affiliation(s)
- Venkatasubramanian Sivakumar
- Chemical Engineering Division, Central Leather Research Institute (CLRI), Council of Scientific and Industrial Research (CSIR), Adyar, Chennai - 600020, India.
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Sowmeyan R, Swaminathan G. Performance of inverse anaerobic fluidized bed reactor for treating high strength organic wastewater during start-up phase. Bioresour Technol 2008; 99:6280-6284. [PMID: 18191565 DOI: 10.1016/j.biortech.2007.12.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2007] [Revised: 11/29/2007] [Accepted: 12/01/2007] [Indexed: 05/25/2023]
Abstract
The aim of this work is to report on the physical characteristics of carrier material (perlite), biomass growth on the carrier material and the biogas production during an apparent steady state period in an inverse anaerobic fluidized bed reactor (IAFBR) for treating high strength organic wastewater. Before starting up the reactor, physical properties of the carrier material were determined. One millimeter diameter perlite particle is found to have a wet specific density of 295 kg/m(3) with specific surface area of 7.010 m(2)/g. This material has provided a good surface for biomass attachment and development. The biofilm concentration (in terms of attached volatile solids (AVS)) attached to carrier material was found to be 0.66 g(AVS)/g(solid). Most particles have been covered with a thin biofilm of uniform thickness. Once the inverse anaerobic fluidized bed system reached the steady state, the organic load was increased step wise by reducing hydraulic retention time (HRT) from 2 days to 0.16 day, while maintaining the constant feed of chemical oxygen demand (COD) concentration. This system has achieved 84% COD removal and reached the biogas production of 13.22 l/l/d at an organic loading rate (OLR) of 35 kgCOD/m(3)/d.
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Affiliation(s)
- R Sowmeyan
- Civil Engineering Department, Periyar Maniammai University, Periyar Nagar, Vallam, Thanjavur 613 403, Tamilnadu, India.
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Sowmeyan R, Swaminathan G. Evaluation of inverse anaerobic fluidized bed reactor for treating high strength organic wastewater. Bioresour Technol 2008; 99:3877-80. [PMID: 17904363 DOI: 10.1016/j.biortech.2007.08.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2007] [Revised: 08/14/2007] [Accepted: 08/15/2007] [Indexed: 05/17/2023]
Abstract
The aim of this work is to evaluate the feasibility of an inverse fluidized bed reactor for the anaerobic digestion of distillery effluent, with a carrier material that allows low energy requirements for fluidization, providing also a good surface for biomass attachment and development. Inverse fluidization particles having specific gravity less than one are carried out in the reactor. The carrier particles chosen for this study was perlite having specific surface area of 7.010 m2/g and low energy requirements for fluidization. Before starting up the reactor, physical properties of the carrier material were determined. One millimeter diameter perlite particle is found to have a wet specific density of 295 kg/m3. It was used for the treatment of distillery waste and performance studies were carried out for 65 days. Once the down flow anaerobic fluidized bed system reached the steady state, the organic load was increased step wise by reducing hydraulic retention time (HRT) from 2 days to 0.19 day, while maintaining the constant feed of chemical oxygen demand (COD) concentration. Most particles have been covered with a thin biofilm of uniform thickness. This system achieved 84% COD removal at an organic loading rate (OLR) of 35 kg COD/m3/d.
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Affiliation(s)
- R Sowmeyan
- Department of Civil Engineering, Periyar Maniammai University, Vallam 613 403, Thanjavur, Tamilnadu, India.
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Sowmeyan R, Swaminathan G. Effluent treatment process in molasses-based distillery industries: a review. J Hazard Mater 2008; 152:453-462. [PMID: 18178308 DOI: 10.1016/j.jhazmat.2007.11.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2007] [Revised: 11/12/2007] [Accepted: 11/13/2007] [Indexed: 05/25/2023]
Abstract
Distillery effluent is a contaminated stream with high chemical oxygen demand (COD) varying from 45,000 to 75,000 mg/l and low pH values of between 4.3 and 5.3. Different processes covering aerobic, anaerobic as well as physico-chemical methods which have been employed to this effluent has been given in this review paper. Among the different methods available, it was found that "An Inverse Anaerobic Fluidization" to be a better choice for treating effluent from molasses-based distillery industries using an inverse anaerobic fluidized-bed reactor (IAFBR). This technology has been widely applied as an effective step in removing 80-85% of the COD in the effluent stream. Therefore, in this review, attention has been paid to highlight in respect of fluidization phenomena, process performance, stability of the system, operating parameters, configuration of inverse anaerobic fluidization and suitable carrier material employed in an inverse anaerobic fluidized-bed reactor especially for treating this effluent.
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Affiliation(s)
- R Sowmeyan
- Civil Engineering, Periyar Maniammai University, Vallam-613 403, Thanjavur, Tamilnadu, India.
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Abstract
From its traditional identity as a hormone involved in growth and differentiation of mammary epithelium and in lactation, to having a pertinent role in the development of mammary carcinoma, the peptide hormone/cytokine prolactin (PRL) has emerged as a versatile signaling molecule. There has been significant progress in our understanding of the fine working of PRL in the past several years. Notably, much effort has been concentrated on the mediator of PRL action, namely, the prolactin receptor (PRLr). The causal link between increased PRLr expression and breast cancer is being increasingly appreciated. Considering that the level of the receptor on the surface is a critical determinant of signaling output in response to PRL, the uncovering of regulatory elements that control receptor expression becomes important. The principle focus of this review is on the regulation of PRLr expression and activity in breast cancer with a brief overview of different isoforms of PRLr, their expression, signaling capabilities and the biological outcomes of PRL/PRLr signaling.
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Affiliation(s)
- G Swaminathan
- Department of Animal Biology and Mari Lowe Center for Comparative Oncology Research, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - B Varghese
- Department of Animal Biology and Mari Lowe Center for Comparative Oncology Research, University of Pennsylvania, Philadelphia, PA 19104, USA
- Cell and Molecular Biology Program, Biomedical Graduate School, University of Pennsylvania, PA 19104, USA
| | - SY Fuchs
- Department of Animal Biology and Mari Lowe Center for Comparative Oncology Research, University of Pennsylvania, Philadelphia, PA 19104, USA
- Address correspondence to: Dr. Serge Y. Fuchs, Department of Animal Biology, School of Veterinary Medicine, University of Pennsylvania, 380 S. University Ave, Hill 316, Philadelphia, PA 19104. (215)-573-6949 (phone), (215)-746-2295 (fax), (email)
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Swaminathan G, Feshchenko EA, Tsygankov AY. c-Cbl-facilitated cytoskeletal effects in v-Abl-transformed fibroblasts are regulated by membrane association of c-Cbl. Oncogene 2007; 26:4095-105. [PMID: 17237826 DOI: 10.1038/sj.onc.1210184] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The multi-functional protein c-Cbl is an important modulator of actin cytoskeletal dynamics in diverse biological systems. We had previously reported that c-Cbl facilitates cell spreading and adhesion and suppresses anchorage-independent growth of v-Abl-transformed fibroblasts. To assess the importance of membrane localization of c-Cbl for the observed effects of c-Cbl in v-Abl-3T3 cells, we first mapped the membrane interactive domain(s) of c-Cbl. Our studies indicate that localization of c-Cbl to the membrane is likely to be mediated by the tyrosine kinase binding (TKB) domain and the proline-rich region of c-Cbl, whereas C-terminal tyrosine phosphorylation does not play a role. The association of v-Cbl, which encompasses the TKB domain, with the membrane was unusual as it was not entirely dependent on SH2-phosphotyrosine interactions. Our studies further demonstrate that Src-like adaptor protein (SLAP), which binds to v-Cbl in a tyrosine phosphorylation-independent manner, facilitates membrane association of Cbl. The interaction between c-Cbl and SLAP in v-Abl-3T3 cells positively influenced c-Cbl-mediated spreading and adhesion of these cells. SLAP appears to exert its effects not simply by increasing the amount of c-Cbl in the membrane but by facilitating binding of p85-phosphatidylinositol-3-kinase (PI3K) with membrane-associated c-Cbl.
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Affiliation(s)
- G Swaminathan
- Department of Microbiology and Immunology, Temple University School of Medicine, Philadelphia, PA 19104, USA
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Sukumar M, Sivasamy A, Swaminathan G. Decolorization of textile dye effluent by genetically improved bacterial strains. Appl Biochem Biotechnol 2007; 136:53-62. [PMID: 17416977 DOI: 10.1007/bf02685938] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2005] [Revised: 03/26/2006] [Accepted: 05/09/2006] [Indexed: 11/30/2022]
Abstract
Synthetic dyes are released into the environment from textile industrial effluents. The discharge of this colored wastewater into rivers and lakes leads to a reduction in sunlight penetration in natural water bodies, which, in turn, decreases both photosynthetic activity and dissolved oxygen concentration and is toxic to living beings. Bacterial isolates are optimized for growth and biomass production before using them for decolorizing dye effluent. The bacterial isolates Bacillus sp. 1 and Bacillus sp. 2 were employed at different percentages by volume with standard nutrient concentration. Of these bacterial isolates Bacillus sp. 2 recorded maximum color reduction. The pH and electrical conductivity (EC) were reduced in the decolorized effluent, and a reduction in biologic oxygen demand, chemical oxygen demand, total suspended solids, and total dissolved solids (TDS) were also observed.
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Affiliation(s)
- M Sukumar
- Chemical Engineering Division, Central Leather Research Institute, Adyar, Chennai-20, India
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Preethi S, Sivasamy A, Sivanesan S, Ramamurthi V, Swaminathan G. Removal of Safranin Basic Dye from Aqueous Solutions by Adsorption onto Corncob Activated Carbon. Ind Eng Chem Res 2006. [DOI: 10.1021/ie0604122] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sivakumar V, Swaminathan G, Rao PG. Studies on the influence of power ultrasound on dye penetration in leather dyeing using photomicrographic analysis. J Microsc 2005; 220:31-5. [PMID: 16269061 DOI: 10.1111/j.1365-2818.2005.01509.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The use of power ultrasound in enhancing diffusion rate in various chemical as well as physical processes is gaining in importance. The influence of power ultrasound in the leather dyeing process on enhancing the penetration of dye through the leather matrix was studied. The penetration of dye through a leather cross-section for a given time in the presence and absence of an ultrasonic field (33 kHz, 150 W) was studied by photomicrographic analysis using a stereomicroscope. Different types of black dyes, such as Acid black 1, Metal complex black 194 and Direct black 155, were used for dyeing leather in the present study. Photomicrographic analysis of a cross-section of dyed leather indicated better penetration of dyes through the leather matrix with the use of ultrasound than without it. Therefore, the results indicate that ultrasound helps to improve the diffusion of dye and to reduce diffusional resistance in the leather dyeing process.
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Affiliation(s)
- V Sivakumar
- Chemical Engineering Division, Central Leather Research Institute, Adyar, Chennai, India.
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Abstract
Following discovery of c-Cbl, a cellular form of the transforming retroviral protein v-Cbl, multiple Cbl-related proteins have been identified in vertebrate and invertebrate organisms. c-Cbl and its homologues are capable of interacting with numerous proteins involved in cell signaling, including various molecular adapters and protein tyrosine kinases. It appears that Cbl proteins play several functional roles, acting both as multivalent adapters and inhibitors of various protein tyrosine kinases. The latter function is linked, to a substantial extent, to the E3 ubiquitin-ligase activity of Cbl proteins. Experimental evidence for these functions, interrelations between them, and their biological significance are addressed in this review, with the main accent placed on the adapter functions of Cbl proteins.
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Affiliation(s)
- A Y Tsygankov
- Department of Microbiology and Immunology, Temple University School of Medicine, Philadelphia, Pennsylvania, PA 19140, USA.
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Ramabrahmam BV, Swaminathan G. Disaster management plan for chemical process industries. Case study: investigation of release of chlorine to atmosphere. J Loss Prev Process Ind 2000. [DOI: 10.1016/s0950-4230(98)00057-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Herbert D, Paramasivan CN, Prabhakar R, Swaminathan G. In vitro experiments with Centella asiatica: investigation to elucidate the effect of an indigenously prepared powder of this plant on the acid-fastness and viability of M. tuberculosis. Indian J Lepr 1994; 66:65-68. [PMID: 7983394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The herb Centella asiatica (Linn.), found throughout India, is acclaimed to have medicinal properties and has been used in leprosy patients from very early times. It is considered that the active compound of this herb, called asiaticoside, probably acts on the waxy covering of M. leprae. The in vitro effect of an indigenously produced dry powder of Centella asiatica (CA) on the acid-fastness and viability of M. tuberculosis was investigated in the present study. The results indicate that CA may not have any direct action on the acid-fastness or viability of M.tuberculosis H37Rv in vitro. Further studies using purified asiaticoside of the plant or in vivo studies are required.
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Affiliation(s)
- D Herbert
- Tuberculosis Research Center (ICMR), Chetput, Madras
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Muralidhar M, Kishore KN, Nagabhushanam M, Swaminathan G, Babu VH. Role of Silver on Superconducting Properties of BPSCCO (2223) System. Cryst Res Technol 1993. [DOI: 10.1002/crat.2170280515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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